皮皮学,免费搜题
登录
搜题
【简答题】
某混合碱滴定至酚酞变色时消耗HCl溶液21.43mL,滴定至甲基橙变色时又用去HCl溶液14.02mL,则该混合碱的主要成分是 和
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】一个 Java源 文件中可以有 ( )公共类,
A.
一个
B.
两个
C.
多个
D.
零个
【判断题】设计构件时,须在满足安全工作的前提下尽量节省材料的要求。 ( )
A.
正确
B.
错误
【单选题】The following information involves two research analysts at a brokerage firm. Erik Bagenot, CFA, is preparing a research report on Global Enterprises, Inc. In preparing the report, he uses materials f...
A.
Wain violated the Standards, but Bagenot did not.
B.
Both Bagenot and Wain violated the Standards.
C.
Bagenot violated the Standards, but Wain did not.
【判断题】灵感思维表现特征是预期性与转瞬即逝性。
A.
正确
B.
错误
【多选题】国家安全范畴包括()等十一个方面。
A.
.政治安全.国土安全
B.
经济安全.军事安全
C.
文化安全.社会安全
D.
资源安全.科技安全
【单选题】In order to avoid certain charge, the analysis involves
A.
cautious predictions.
B.
impartial judgment.
C.
careful calculation.
D.
simple statistics.
【多选题】A quantitative research:
A.
Uses the analysis of numerical data
B.
Involves large number of participants representative of the population of interest
C.
Aims at using statistics to explain the observations
D.
Uses various instruments to collect data (questionnaires, monitors, other tools)
【判断题】设计构件时,须满足在安全工作的前提下尽量节省材料的要求。
A.
正确
B.
错误
【单选题】一个Java源文件中可以有( )公共类。
A.
一个
B.
两个
C.
多个
D.
0 个
【单选题】The integration of different data layers involves a process called _______, which can be a visual operation, but analytical operations require one or more data layers to be joined physically.
A.
overlay
B.
network
C.
buffer
D.
spatial statistics
相关题目: